Recognize what makes this moment difficult
Acknowledge the event directly without turning it into a lesson, comparison, prediction, or silver lining. For a message about how to apologize for breaking a shared budget, use this factual base: state the amount, agreement, transaction, and current shortfall without hiding behind vague language.
Offer support that can be accepted
Offer one specific form of practical or emotional support and make clear that no immediate reply is needed. Offer a written repayment, correction, or reporting plan with realistic dates and records. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Follow their pace rather than yours
Do not ask for trust before the numbers are clear or make a promise that depends on uncertain income. Use qualified financial, legal, banking, or fraud support when ownership or authorization is disputed. The recipient decides whether they want conversation, ordinary company, practical help, professional support, or quiet.